An electric power tool includes a housing, an electric power, a trigger, a trigger-limitation device and a switching device. The housing receives the electric power unit having an output shaft. The trigger is slidably mounted on the housing so as to control operation of the electric power unit. The trigger-limitation device is mounted on the housing so as to be movable between a limited position and an unlimited position. The trigger-limitation device comes into contact with the trigger to limit a stroke of the trigger, when being kept in the limited position, and not coming into contact with the trigger to impose no limitation to the stroke of the trigger, when being kept in the unlimited position. The switching device is provided on the housing in a different place from the trigger-limitation device. The switching device operates the trigger-limitation device to move between the limited position and the unlimited position.